Gas-cleaner.



L. P. LOWE.

(ms CLEANER. APPLICATION ifILED 2213.18, 1909 Patented'Aug. 16, 1910.

WlTyEs IN V EN. TOR,

ATTORNEY.

LEON I. LOWE, OF SAN FRANCISCO, CALIFORNIA.

GAS-CLEANER.

Specification of Letters Patent.

Patented Aug. 16, 1910.

Application filed February 18, 1909. Serial No. 478,546.

To all whom it may concern.

Be it known that I, LEON P. Lowe, a citizen of the United States,residing at San Francisco, in the county of San Francisco and State ofCalifornia, have invented new and useful Improvements in Gas-Cleansers,of which the following is a specification.

The object of the present invention is to provide an improved form ofgas cleanser which will enable gas to be purified, scrubbed, or cleansedmore conveniently and economically than heretofore.

In the accompanying drawing, Figure 1 is a transverse section of theapparatus on the line w-m of Fig. 2,- Fig. 2 is a side view thereofpartly broken away.

eferring to the drawing, 1 indicates a rectangular box-like casingprovided at the top with a charging opening 2, and at the bottom withopenings 3 on both sides 4, for the removal of the material used forpurifying or scrubbing, all of said openings being closed by suitabledoors 5. Said casing is formed on one side with a gas inlet openin 6near the bottom and an outlet opening at the top.

Extending between the ends 8 of the easing are two closed walls 9converging toward each other downward forming a chute or hopper, andsuitably strengthened by angle irons 10 extending between the end walls8. Said walls 9 are secured at the top to the sides A of the casing at ashort distance below the gas outlet, and the side edges of said wallsare secured to the walls of the casing, but said walls do not extend tothe bottom of the casing. The purifying material, such as lime, or theso-called iron oXid or iron sponge, is fed into the apparatus by thecharging opening 2 at the top, and falls between the downwardlyconverging walls 9, on to the bottom 11 of the easing, spreading outwardon said bottom from the lower free edges of said walls. The chute 9, thewalls of which are wholly closed, extends to a comparatively shortdistance on the bottom of the casing, less than the depth of the chute,so that the material emerging from said chute spreads out over thebottom of the casing in the form of a pyramidal pile into which pile thegas enters and then ascends through the material in the chute. At thebottom, the material at the ends of the casing is maintained out ofcontact with said ends by means of narrow sloping partitions 12, whichthus form, with the end walls 8 and bottom 11, conduits 13 for the gas,and permit the gas to pass freely from the side of the chute at which itenters to the opposite side, and thus to enter the purifying material onboth sides.

The cleanser is used in the following manner: The gas enters by theinlet 6 and part of it passes by the end conduits 13 to the oppositeside of the purifier. The gas, being unable to escape upward between thesloping walls 9 and the sides 4 of the casing, enters the purifyingmaterial at the bottom and passes upward therethrough, being purifiedthereby, and escapes by the gas outlet 7. The purifying material at thebottom, where the gas first enters, is the foulest, and is the portionwhich it is most desirable to first remove. This is done by, firstshutting off the gas, then opening the doors at the bottom, insertingsuitable pushers through the doors at one side and pushing the materialout through the doors at the other side. Since a small part of thematerial can thus be pushed out at one time, this operation is notdiilicult or laborious. As the foul material is removed at the bottom,the purifying material sinks between the converging walls of the chute,and fresh material should then be added at the top. Of course, the foulmaterial can be renovated and used over again in the same way as is doneat present. This arrangement avoids the great expenditure of time andlabor necessitated in .the present method, in which the purifyingmaterial is spread upon trays, the trays are removed, the materialdumped therefrom, fresh material is placed upon the trays, and they arethen placed in the purifiers. On account of the large mass of thematerial used for purifying, such an opera tion is laborious andexpensive. Again, the invention greatly economizes in the amount ofpurifying apparatus required. In addition, it greatly increases theefliciency of the purifying material, as only the foul portions areremoved.

It will readily be seen that the use of the above apparatus is notconfined to that of purifying gas, as it can also be used for cleansinggas, by filling the space between the converging walls with the propermaterial.

It is also evident that continuously operat ing mechanical means mightbe introduced for moving the material at the bottom outward through thedoors, for renovating said material, and for then charging it into thetop of the purifier to be used over again.

I claim 1. In a gas cleanser, the combination of a casing having aclosed bottom, a downwardly tapering chute within the casing open at thebottom, and having wholly closed sides, and separating the interior ofthe easing into two compartments, one connected with the bottom of saidchute and the other with its top, a gas inlet connected with the formercompartment, a gas outlet connected with the latter compartment, saidcasing being provided with means for feeding purifying material intosaid chute, and means for permitting the removal of purifying materialbetween the bottom of the chute and the bottom of the casing,substantially as described.

2. In a gas cleanser, the combination of a casing having a closedbottom, a downwardly tapering chute within the casing open at thebottom, and extending to a distance from the bottom of the casing lessthan the depth of the chute, and separating the interior of the casinginto two compartments, one connected with the bottom of said chute andthe other with its top, a gas inlet connected with the formercompartment, a gas outlet connected with the latter compartment, saidcasing being provided with means for feeding purifying material intosaid chute, and means for permitting the removal of purifying materialbetween the bottom of the chute and the bottom of the casing,substantially as described.

In testimony whereof I have hereunto set my hand in the presence of twosubscribing witnesses.

LEON P. LOWE.

